prj/tech/libsrc/dev2d/bk8pix8.c

   1 /*
   2  * $Source: s:/prj/tech/libsrc/dev2d/RCS/bk8pix8.c $
   3  * $Revision: 1.1 $
   4  * $Author: KEVIN $
   5  * $Date: 1996/04/10 15:51:47 $
   6  *
   7  * Routines for drawing pixels into a flat 8 canvas.
   8  *
   9  * This file is part of the dev2d library.
  10  *
  11  * $Log: bk8pix8.c $
  12  * Revision 1.1  1996/04/10  15:51:47  KEVIN
  13  * Initial revision
  14  *
  15  */
  16
  17 #include <bank.h>
  18
  19 /* draws an unclipped pixel of the given color at (x, y) on the canvas. */
  20 void bank8_norm_upix8(int color, int x, int y)
  21 {
  22    long p;
  23    int save_bank=gdd_bank;
  24
  25    p = ((long )grd_bm.bits) + grd_bm.row*y + x;
  26    gd_set_bank(p>>16);
  27    *(gd_bank_p(p)) =
  28       color;
  29    gd_restore_bank(save_bank);
  30 }
  31
  32 void bank8_clut_upix8 (int color, int x, int y)
  33 {
  34    long p;
  35    int save_bank=gdd_bank;
  36
  37    p = ((long )grd_bm.bits) + grd_bm.row*y + x;
  38    gd_set_bank(p>>16);
  39    *(gd_bank_p(p)) =
  40       ((uchar *)grd_gc.fill_parm)[color];
  41    gd_restore_bank(save_bank);
  42 }
  43
  44 void bank8_xor_upix8 (int color, int x, int y)
  45 {
  46    uchar *bank_p;
  47    long p;
  48    int save_bank=gdd_bank;
  49
  50    p = ((long )grd_bm.bits) + grd_bm.row*y + x;
  51    gd_set_bank(p>>16);
  52    bank_p = gd_bank_p(p);
  53    *bank_p = color ^ *bank_p;
  54    gd_restore_bank(save_bank);
  55 }
  56
  57 void bank8_tluc_upix8 (int color, int x, int y)
  58 {
  59    uchar *clut=tluc8tab[color];
  60    uchar *bank_p;
  61    long p;
  62    int save_bank=gdd_bank;
  63
  64    p = ((long )grd_bm.bits) + grd_bm.row*y + x;
  65    gd_set_bank(p>>16);
  66    bank_p = gd_bank_p(p);
  67
  68    if (clut!=NULL) {
  69       *bank_p = clut[*bank_p];
  70    } else {
  71       *bank_p = color;
  72    }
  73    gd_restore_bank(save_bank);
  74 }
  75
  76 #pragma off (unreferenced)
  77 void bank8_solid_upix8 (int color, int x, int y)
  78 {
  79    long p;
  80    int save_bank=gdd_bank;
  81
  82    p = ((long )grd_bm.bits) + grd_bm.row*y + x;
  83    gd_set_bank(p>>16);
  84    *(gd_bank_p(p)) =
  85       (uchar )grd_gc.fill_parm;
  86    gd_restore_bank(save_bank);
  87 }
  88 #pragma on (unreferenced)